﻿/*
Copyright 2011 Shane Ng

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using freemarker.template;
using System.Reflection;
using System.ComponentModel.Composition;

namespace Freemarker.Net.Directive {
    [Export(typeof(ImportableDirective))]
    public class ResourceManagerDirectiveModel : TemplateDirectiveModel, ImportableDirective {
        static ResourceManagerDirectiveModel instance = new ResourceManagerDirectiveModel();
        public static ResourceManagerDirectiveModel Instance {
            get{
                return instance;
            }
        }

        public void execute(freemarker.core.Environment env, java.util.Map parameters, TemplateModel[] models, TemplateDirectiveBody body) {
            if (parameters.containsKey("type")) {
                TemplateScalarModel scalar = (TemplateScalarModel)parameters.get("type");
                var type = Type.GetType(scalar.getAsString());
                env.setVariable("res", 
                    env.getObjectWrapper()
                       .wrap(type.GetProperty("ResourceManager", 
                                                BindingFlags.Static | 
                                                BindingFlags.NonPublic | 
                                                BindingFlags.Public)
                                .GetGetMethod(true)
                                .Invoke(null, null)));
            }            
        }

        public string key {
            get { return "resource"; }
        }
    }
}
